Instruction manual
53
Compressor oil pressure too
low
Compressor oil level too low.
Before checking compressor oil level, wait
approx. 10 minutes after unit has stopped.
Add correct oil, if necessary. Never overfill.
Compressor oil filter clogged.
Replace compressor oil filter.
By-pass valve in oil pump stuck in open position.
Remove bypass valve, clean and inspect.
Oil pump failure.
Remove oil pump and inspect parts for wear.
By-pass valve of oil sump stuck in open position.
Remove bypass valve, clean and inspect.
Ambient temperature too low.
Use heaters, check oil viscosity.
Compressor oil pressure sensor disconnected.
Connect wiring.
Engine does not start
Engine oil pressure does not build up.
See Engine Operation Manual.
Compressor oil pressure does not build up.
See problem “Compressor oil pressure too low”.
Faulty compressor oil pressure shutdown switch.
Remove and test switch. Replace, if out of order.
ECM fault.
Consult Atlas Copco.
Coolant level(s) too low.
Check and adjust coolant level(s), if necessary.
Crank time too short.
Adjust crank time on User Interface.
Ambient temperature too low.
Connect engine heaters.
Speed sensor inoperative.
Check speed sensor and electric wiring.
Insufficient fuel supply.
Check fuel lines or bleed.
Temperature or pressure sensor missing or
malfunctioning.
Check via the User Interface display and replace
sensor.
After working for some time,
the unit keeps shutting down
Restriction in fuel supply to engine.
Check fuel lines and fuel filters.
Air leak in fuel suction line or fuel filters.
Check suction side of electric fuel pump and fuel
filters for air leaks.
Compressor oil pressure too low.
See problem “Compressor oil pressure too low”.
Engine oil pressure too low.
See Engine Operation Manual.
Compressor overheating.
See “Compressor overheating”
Engine overheating.
See Engine Operation Manual.
Excessive oil fumes or air
flow coming from breather
pot assembly on gear casing.
Compressor element(s) seals defective.
Have compressor element(s) inspected by Atlas
Copco.
Intercooler pressure below
normal
Choked air filter elements.
Remove and inspect air filter elements.
Clean or replace elements, if necessary.
Intercooler relief valve(s) leaking.
Remove valve(s), clean and inspect.
Electric blow-off valve malfunctioning.
Check interstage pressure. Check functioning of
loading solenoid valve. Replace diaphragm of
blow-off valve if necessary.
Air leak between LP and MP compressor
element.
Inspect pipe connections and intercooler.
Replace leaking O-rings, gaskets or intercooler,
if necessary.
LP compressor element not in order.
Have LP compressor element inspected by Atlas
Copco.
Intercooler clogged internally.
Consult Atlas Copco.
Symptom
Possible cause
Corrective action
Содержание PTS 916 Cd
Страница 1: ...Instruction Manual for Portable Compressors PTS 916 Cd ...
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Страница 57: ...Preliminary 57 Circuit diagrams ...
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Страница 74: ...Printed in Belgium 07 2007 Preliminary www atlascopco com ...